4x-10+5x=21

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Solution for 4x-10+5x=21 equation:


Simplifying
4x + -10 + 5x = 21

Reorder the terms:
-10 + 4x + 5x = 21

Combine like terms: 4x + 5x = 9x
-10 + 9x = 21

Solving
-10 + 9x = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '10' to each side of the equation.
-10 + 10 + 9x = 21 + 10

Combine like terms: -10 + 10 = 0
0 + 9x = 21 + 10
9x = 21 + 10

Combine like terms: 21 + 10 = 31
9x = 31

Divide each side by '9'.
x = 3.444444444

Simplifying
x = 3.444444444

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